G40.911
BillableEpilepsy, unspecified, intractable, with status epilepticus
HCC Category Mapping
V28HCC 201 — Seizure Disorders and Convulsions
0.262V24HCC 79 — Seizure Disorders and Convulsions
0.244ESRDHCC 79 — Seizure Disorders and Convulsions
0.000RxHCCHCC 163 — Seizure Disorders, Intractable Epilepsy
0.000What This Code Means
Epilepsy of unknown type that is resistant to medication, currently experiencing status epilepticus (prolonged or repeated seizures).
Coding Tips
- •Intractable epilepsy means the patient has failed adequate trials of at least two antiepileptic drugs
- •Status epilepticus requires immediate documentation and treatment; this is a medical emergency
Clinical Significance
Unspecified epilepsy, intractable, with status epilepticus captures a critical clinical scenario: drug-resistant seizures of undetermined type in a life-threatening prolonged seizure state. This typically occurs in emergency or inpatient settings where the epilepsy type is unknown but the patient has documented medication resistance and is in active status epilepticus.
Documentation Requirements
- ✓Documentation of intractable epilepsy (failed adequate medication trials)
- ✓Active status epilepticus during the encounter
- ✓Emergency interventions and ICU-level care documentation
- ✓Medications tried and failed
- ✓Plan for determining epilepsy type once acute crisis is managed
- ✓Duration and severity of status epilepticus
Commonly Confused Codes
G40.901 — Unspecified epilepsy, NOT intractable, with status epilepticusG40.919 — Unspecified epilepsy, intractable, WITHOUT status epilepticusG40.803 — Other epilepsy, intractable, with status epilepticus; slightly more specificG40.411 — Other generalized epilepsy, intractable, with status epilepticusG40.813 — Lennox-Gastaut, intractable, with status epilepticus; use when syndrome is identified
Code Hierarchy
└G40Epilepsy and recurrent seizures└G40.9Epilepsy, unspecified└G40.91Epilepsy, unspecified, intractable└G40.911Epilepsy, unspecified, intractable, with status epilepticus
└G40.911Epilepsy, unspecified, intractable, with status epilepticus